19 lines
1.7 KiB
Markdown
19 lines
1.7 KiB
Markdown
# ATTNode PCB (SMD Version) v3
|
|
|
|
PCB for the ATTiny Sensor Node, SMD Version
|
|
|
|
## Parts List
|
|
|
|
| Reference | Part | Notes |
|
|
| --------- | --------------------------- | ---------------------------------------------------------------------------- |
|
|
| ATTiny3216| ATTiny3216-S MCU (SOIC-20) | |
|
|
| RFM95 | HopeRF RFM95W Lora Module | |
|
|
| R1 | Resistor 100Ω SMD 1206 | Only if LED is mounted, Value fitting for LED |
|
|
| R2 | Resistor 47kΩ SMD 1206 | Pullup for NSS line, for more reliable programming |
|
|
| D1 | LED SMD 1206 | Optional, connected to pin 11 (B0) |
|
|
| C1,C2 | Capacitor 100nF SMD 1206 | Bypass Capacitors for ATTiny and RFM95 |
|
|
| BAT1 | CR2032 Battery Holder | See pictures for the type I used |
|
|
| ANT1 | 868 MHz Antenna | SMA Connector, u.fl Connector or Coil Antenna |
|
|
| J1 | 1x9 Pin 2.54mm pitch header | Optional, for the Case directly solder the Sensor to the Backside of the PCB |
|
|
| J2 | 1x4 Pin 2.54mm pitch header | Optional, for the Case directly solder the Sensor to the Backside of the PCB |
|
|
| PRG1 | 2x3 Pin 2.54mm pitch header | Optional, has to be shortened from standard height to fit in the Case |
|